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LTC3541EDD-1#TRPBF

更新时间： 2024-11-12 19:54:39
品牌 Logo 应用领域
凌特 - Linear 开关光电二极管
页数 文件大小 规格书
22页 569K
描述
LTC3541-1 - High Efficiency Buck + VLDO Regulator; Package: DFN; Pins: 10; Temperature Range: -40°C to 85°C

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LTC3541EDD-1#TRPBF 技术参数

是否Rohs认证： 符合生命周期：Transferred
零件包装代码：DFN包装说明：HVSON, SOLCC10,.12,20
针数：10Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.22模拟集成电路 - 其他类型：SWITCHING REGULATOR
控制模式：CURRENT-MODE最大输入电压：5.5 V
最小输入电压：2.7 V标称输入电压：3.6 V
JESD-30 代码：S-PDSO-N10JESD-609代码：e3
长度：3 mm湿度敏感等级：1
功能数量：1端子数量：10
最高工作温度：85 °C最低工作温度：
最大输出电流：1.25 A封装主体材料：PLASTIC/EPOXY
封装代码：HVSON封装等效代码：SOLCC10,.12,20
封装形状：SQUARE封装形式：SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度（摄氏度）：260认证状态：Not Qualified
座面最大高度：0.8 mm子类别：Switching Regulator or Controllers
表面贴装：YES切换器配置：BUCK
最大切换频率：2700 kHz技术：CMOS
温度等级：COMMERCIAL EXTENDED端子面层：Matte Tin (Sn)
端子形式：NO LEAD端子节距：0.5 mm
端子位置：DUAL处于峰值回流温度下的最长时间：30
宽度：3 mmBase Number Matches：1

LTC3541EDD-1#TRPBF 数据手册

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LTC3541-1  
High Efficiency  
Buck + VLDO Regulator  
FEATURES  
DESCRIPTION  
The LTC®3541-1 combines a synchronous buck DC/  
DC converter with a very low dropout linear regulator  
(VLDO) to provide up to two output voltages from a single  
input voltage with minimal external components. When  
configuredfordualoutputoperation,theLTC3541-1’sauto  
start-upfeaturewillbringtheVLDO/linearregulatoroutput  
intoregulationinacontrolledmannerpriortoenablingthe  
Buck regulator output without the need for external pin  
control. Buck output prior to VLDO/linear regulator output  
sequencing may also be obtained via external pin control.  
The input voltage range is ideally suited for Li-Ion battery-  
powered applications, as well as powering sub-3.3V logic  
from 5V or 3.3V rails.  
High Efficiency, 500mA Buck Plus 300mA VLDO™  
n
Regulator  
n
Auto Start-Up Powers VLDO/Linear Regulator  
Output Prior to Buck Regulator Output  
n
Independent High Efficiency, 500mA Buck  
(V : 2.7V to 5.5V)  
IN  
n
n
n
n
n
n
n
n
n
300mA VLDO Regulator with 30mA Standalone Mode  
No External Schottky Diodes Required  
Buck Output Voltage Range: 0.8V to 5V  
VLDO Input Voltage Range (LV ): 0.9V to 5.5V  
IN  
VLDO Output Voltage Range VLDO: 0.4V to 4.1V  
Selectable Fixed Frequency, Pulse-Skip Operation or  
Burst Mode® Operation  
Short-Circuit Protected  
Thesynchronousbuckconverterprovidesahighefficiency  
output, typically 90%, capable of providing up to 500mA  
of continuous output current while switching at 2.25MHz,  
allowing the use of small surface mount inductors and ca-  
pacitors. A mode-select pin allows Burst Mode operation  
to be enabled for higher efficiency at light load currents, or  
disabledforlowernoise,constantfrequencyoperation.  
Current Mode Operation for Excellent Line and Load  
Transient Response  
Constant Frequency Operation: 2.25MHz  
Low Dropout Buck Operation: 100% Duty Cycle  
Small, Thermally Enhanced, 10-Lead (3mm × 3mm)  
DFN Package  
n
n
n
APPLICATIONS  
The VLDO regulator provides a low noise, low voltage  
output capable of providing up to 300mA of continuous  
output current using only a 2.2μF ceramic capacitor. The  
n
PDAs/Palmtop PCs  
n
Digital Cameras  
input supply voltage of the VLDO regulator (LV ) may  
n
IN  
Cellular Phones  
come from the buck regulator or a separate supply.  
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and VLDO is a  
trademark of Linear Technology Corporation. All other trademarks are the property of their respective  
owners. Protected by U.S. Patents, including 5481178, 6611131, 6304066, 6498466, 6580258.  
n
PC Cards  
Wireless and DSL Modems  
n
n
Other Portable Power Systems  
Buck (Burst) Efficiency and Power Loss vs Load Current  
TYPICAL APPLICATION  
100  
90  
1
LTC3541-1 Typical Application  
EFFICIENCY  
V
IN  
80  
2.9V TO 5.5V  
10µF  
0.1  
V
70  
IN  
ENBUCK  
ENVLDO  
60  
50  
2.2µH  
MODE  
POWER LOSS  
SW  
0.01  
0.001  
0.0001  
V
V
OUT2  
OUT1  
2.5V  
LV  
LV  
OUT  
1.5V  
IN  
40  
30  
20  
10  
0
200mA  
300mA  
LTC3541-1  
22pF  
412k  
243k  
BUCKFB  
LFB  
GND  
2.2µF  
10µF  
115k  
150k  
V
V
= 3.3V  
PGND  
IN  
OUT  
= 2.5V  
35411 TA01a  
1
10  
100  
1000  
35411 TA01b  
LOAD CURRENT (mA)  
35411fb  
1
For more information www.linear.com/LTC3541-1  
1234567...22

中文翻译

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LTC3541EDD-1#TRPBF 替代型号

型号 品牌 替代类型 描述 数据表
LTC3541EDD-1#PBF Linear

完全替代

 LTC3541-1 - High Efficiency Buck + VLDO Regulator; Package: DFN; Pins: 10; Temperature Ran

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